References: |
- Deposit:: ASHLEY, B. E., 1969, THE MINERAL INDUSTRY OF COSTA RICA, IN MINERALS YEARBOOK 1969: U.S. BUREAU OF MINES YEARBOOK, V. 4, P. 833.
- Deposit:: SANDOVAL M., FELIPE, 1969, MINING POTENTIAL IN COSTA RICA: COSTA RICA, DIR. GEOL. MINAS PETROL., INF. TEC. NOTAS GEOL., V. 8, NO. 32, P. 3.
- Deposit:: SANDOVAL M., L. F., 1977, MINERALIZACIONES DE TIPO VOLCANICO EN COSTA RICA: COSTA RICA, DIR. GEOL. MINAS PETROL., INF. TEC. NOTAS GEOL., V. 15, NO. 58, 23 P.
- Deposit:: BERRANGE, J.P. MATHER, S.J., MORALES C., NURY, AND ALVARADO V., FERNANDO, 1990, THE NON-METALLIC INDUSTRIAL MINERALS AND ROCKS OF COSTA RICA: SAN JOSE, COSTA RICA, PROYECTO ANGLO-COSTARRICENSE DE MINERALES INDUSTRIALES (PACOMI), 181 P.
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